an advertisement claims that a 5-pound box of detergent will wash 20 loads of laundry. A 5-pound box cost $3.50. A 15-pound box costs $10.00. how much will you save PER LOAD if you buy the 15-pound box?

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.